UV Index
UV Index
Today's UV index in Ulan Bator, Mongolia 
will be up to 6.8, indicating a high level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-05-09
With Ulan Bator's UV index reaching 6.8, protect your skin from harm by staying in shade, wearing protective clothing, and applying SPF 30+ sunscreen every 2 hours, especially between 10 a.m. and 4 p.m. when UV rays are strongest.
Ulan Bator has a low UV index, usually ranging from 1 to 3, because it is far north and often cloudy or snowy in winter. UV levels are higher in late spring and summer. The city experiences very cold winters with temperatures often below -20°C, and short, warm summers with temperatures around 20°C. Spring and autumn are brief and can be windy. Compared to neighboring countries like China and Russia, Ulan Bator is colder and drier. Its location on the high Mongolian Plateau means more extreme temperature changes than in nearby regions.
See the UV index hour by hour for Ulan Bator, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.